body {
    margin: 0;
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

* {
    box-sizing: border-box;
}

.text {
    width: 400px;
    margin: 0 auto;
}
.mask {
  width: 100%;
  height: 100%;

  position: fixed;
  top: 0;
  left: 0;
  z-index: 999;

  background-color: rgba(0, 0, 0, 0.8);
}

.modal {
  width: 320px;
  padding: 15px;
  margin-left: -160px;

  background-color: #fff;

  position: fixed;
  top: 75px;
  left: 50%;
  z-index: 1000;
}


.modal-close {
      width: 20px;
      height: 20px;

      background: none;
      border: 0;
      cursor: pointer;

      position: absolute;
      top: -20px;
      right: -20px;
}
.btn {
    display: inline-block;
    vertical-align: top;
    padding: 7px 15px;

    font-family: inherit;
    color: #fff;
    cursor: pointer;
    border: 0;
}

.btn.success {
    background-color: #35bb27;
}
.btn.cancel {
    background-color: #f9861f;
}
